US 'morally obliged' to heal Laos war wounds

VIENTIANE: President Barack Obama pledged Tuesday to dramatically increase US efforts to clear millions of bombs secretly dropped on tiny Laos by American planes a generation ago, saying the clean-up was a "moral obligation".

Laos became the world's most-bombed country per capita from 1964 to 1973 as Washington launched a secret CIA-led war to cut supplies flowing to communist fighters during the Vietnam War.